from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. An induline dyestuff made from aniline and formerly used as a substitute for indigo in dyeing wool and silk.
from the GNU version of the Collaborative International Dictionary of English
- n. A dyestuff of the induline group, made from aniline, and used as a substitute for indigo in dyeing wool and silk a violet-blue or a gray-blue color.
from The Century Dictionary and Cyclopedia
- n. Same as nigrosine. Compare induline.
In alkaline solution azobenzene results, while arsenic acid produces the violet-colouring matter violaniline.